Below Are Some Financial Data for the Do Drop in Convenience

Below are some financial data for the Do Drop In convenience store.
The owners have put $40,000 into the business and they worked a total of 80 hours during the week.Savings accounts are currently paying 5.2% interest and the going wage rate is $8 per hour.
-Refer to the information above to answer this question.What is the week's economic profit for the Do Drop In?

A) -$320.
B) -$40.
C) $280.
D) $320.
E) $1,050.